baber/WOPTO huggingface dataset:
Patent GB-1264735-A (GB)
IPC: B60H1/22
Filed: 1970-06-15
Abstract: 1,264,735. Alternator control of heaters. MOTOROLA Inc. 15 June, 1970 [24 July, 1969], No. 28813/70. Heading H2H. A system for providing rapid heating when an automotive vehicle is started up employs two alternators, which can feed their voltage outputs either in phase or out of phase through a resistive load. In the normal running condition, when no electrical heating of the vehicle is required, thermal .switch 94 is in the open position, and switches 14 and 90 are in the positions shown by the continuous lines. In this condition the field coils 10 and 22 of the two alternators 12 and 24 are connected in series and the output voltages from the threephase coils of one alternator are in phase with the other, thus there is no voltage drop across the resistors 54, 56 and 58, and no heat is generated. However in this configuration a voltage does exist between the mid points of the tappings 72, 74, 76 and -earth, so that power is supplied by a rectifier unit 78 to the D.C. automotive load, i.e. to power lighting, the ignition system &c. When bi-metallic strip 94 -makes contact, due to drop in temperature e.g. when the vehicle is cold the switches 14 and 90 take up the position shown by the -dotted lines. 'In this position the alternator field core 10 is connected in parallel with field core 22 and the polarity of the voltage across it is reversed. As a result of this the voltages developed -by the two alternators are 180 degrees out of phase, thus producing a voltage drop across the resistors 54, 56 and 58. To further enhance the current through the heat resistors the voltage regulator is effectively disconnected by closure of bi-metallic strip 94. This system may be used for the rapid heating of an automotive vehicle just after starting. It should be noted that if the tapping points 72, 74 and 76 are in the centre of resistors 54, 56 and 58, then no power is obtained via rectifier 78 when the alternators are supplying outof-phase voltage.
Patent GB-1294937-A (GB)
IPC: F24H1/32
Filed: 1970-03-20
Abstract: 1294937 Sectional boilers STREBELWERK GmbH 20 March 1970 [22 March 1969 18 Feb 1970] 13465/70 Heading F4A A sectional boiler comprises a combustion chamber 38, Fig. 1, end sections in which chambers 35, 36 deflect the combustion gases through 180 degrees, and boiler sections 40 to 48, each having concentric annular ducts 50, 51, 52, Fig. 2, carrying a heat carrier i.e. water, gas flues 19a to 26, and 27 to 34 between adjacent ducts so as to define a reverse flow flue, e.g. 21, Fig. 1, connecting the two chambers 35, 36 and a forward flow flue, e.g. 29 connecting the chamber 35 at the burner end to an exhaust outlet 37, the boiler is characterized in that the annular ducts are joined by radial passages equal in width to the boiler sections thus providing uninterrupted flow for the combustion gases in each individual gas flue. The radial passageways may be provided only adjacent bosses 60, 61, which join the heat carrier portions of adjacent boiler sections, or a plurality of passageways may be provided with more passageways between annuli 51 and 52 than between annuli 50 and 51.
Patent GB-1295109-A (GB)
IPC: G05B13/02
Filed: 1970-07-23
Abstract: 1295109 Automatic adaptive control CESKOSLOVENSKA AKADEMIE VED 23 July 1970 [20 Oct 1969] 35645/70 Heading G3R A closed-loop system for controlling a variable is perturbated by a signal having a wide frequency spectrum and the phase displacements of the different frequency components of the resulting variations control the loop gain to attenuate those components having a large phase change. In Fig.1 a signal 22 corresponding to the value of a variable of a plant 1 is compared with a signal 21 corresponding to a desired value so that any error is applied to circuits 2, 3, 4 producing proportional integral and differential components. These components are combined to form a control signal 18 which is applied to the plant to correct the value of the variable. A perturbating signal 17 having a wide frequency spectrum is applied to the plant and the phases of the PI & D components applied through filters 12, 8 and 13 are compared with the phases of the signal controlling the plant at 14, 15, 16 so that components having a large phase shift are attenuated by their effect through integrators 9, 10, 11 to cause a reduction of the gain of multipliers 5, 6, 7. Constant signals 51-53 applied through integrators 9-11 ensure that the control signal applied to the plant varies at all times. Modifications are described in which the desired value signal acts also as the perturbation signal and the phase of the plant control signal or its PI & D components is compared with the phase of PI & D components of the variable.
Patent GB-1302023-A (GB)
IPC: A61C5/77
Filed: 1968-10-22
Abstract: 1302023 Moulding models of cut teeth TECHNICAL DENTAL DEVELOPMENTS (LONDON) Ltd 22 Jan 1970 [22 Oct 1968] 7024/72 Divided out of 1302022 Heading B5A [Also in Division A5] In a method of making a model of a cut tooth for use in the product of a dental crown which is to be mounted on the cut tooth, the model is cast in an impression 3 of the cut tooth with a liquid polyester resin containing balls 6 of metal of greater specific gravity than the resin, and the resin is then solidified by polymerization. A peg 2, which may have an end 1 substantially of the shape of the mould, may be introduced into the mould while the resin is still liquid, the peg having a specific gravity less than that of the resin so that it may be left floating in the mould during solidification. The balls 6 may be of a base or ferrous metal, and may be compacted in the mould by vibration, pressure, centrifugal force or magnetism. The peg may be moulded of acrylic resin so that it bonds to the polyester resin of the model.
Patent GB-1302865-A (GB)
IPC: G01N15/14
Filed: 1969-07-14
Abstract: 1302865 Photo-electric inspection of materials NATIONAL RESEARCH DEVELOPMENT CORP 6 July 1970 [14 July 1969] 35335/69 Heading G1A In an arrangement for detecting by transmission or reflection areas of a material having different properties, such as detecting cell nuclei in a biological cell preparation the output from a scanner 10, Fig.1, is compared in a comparator 11 with a threshold voltage developed in a summing amplifier 18 by parallel circuits delayed to correspond with successive scans and including integrators 15-17 and inverters 19-21. Provision is made to apply an adjustable bias at 23, and gates 12 and 24, responsive to a comparator output, disconnect the scanner input to the threshold circuit and establish a feedback respectively so that the true background threshold is maintained.
Patent GB-1307833-A (GB)
Title: Linear induction motor primary member
IPC: H02K41/025
Filed: 1969-06-18
Abstract: 1307833 Linear motors TRACKED HOVER-  CRAFT Ltd 18 June 1970 [18 June 1969] 30925/69 Heading H2A  In a linear induction motor, e.g. for propelling a gas-cushion vehicle along a track, the primary member 7, Fig. 2, which has a winding 9 located in slots therein, has a sheet member 10 covering the slot mouths and intermediate teeth and consisting of non-conductive and non-magnetic material but carrying magnetic material adjacent the teeth. As shown, two primary members 7 are located on opposite sides of a reaction rail 6 and each carries a sheet 10. The sheets may serve to restrain movement of the windings within the slots and alternatively or additionally act as expendable layers preventing direct contact between the primary members and the rail during operation of the motor. In this case they are readily replaceable. Suitable materials for the -sheets are natural or synthetic resin; P.V.C. or P.T.F.E. and the magnetic material may be barium ferrite particles carried in suspension in the sheets. The motor may be of the single-sided type in which case one primary member 7 is replaced by a fixed laminated core backing the reaction plate. Alternatively the motor may comprise a downwardly-directed E- shaped core facing a horizontal reaction rail, Figs. 4 and 5 (not shown), the flux in this embodiment flowing transversely of the core.
Patent GB-1309096-A (GB)
Title: Ships accommodation ladders
IPC: B63B27/14
Filed: 1970-03-19
Abstract: 1309096 Ships ladders LINKLETERS PATENT SHIP FITTINGS CO Ltd 5 May 1971 [19 March 1970] 13278/70 Heading E1S Apparatus for movably supporting an accommodation ladder 5 pivoted to a platform 1 comprises a pivotable davit arm 3, and a rope passing from a winch 7 over sheaves on the arm, platform and ladder and a further sheave 10 above the arm. Operation of the winch first lifts the ladder about pivots 6 and then pivots the ladder, davit arm and platform 1 to a vertical stowed position.
Patent GB-1312636-A (GB)
Title: Synergistic antiozonant mixture and use in rubber
IPC: C08K5/18
Filed: 1970-09-03
Abstract: 1312636 Antiozonants for rubbers UNIVERSAL OIL PRODUCTS CO 3 Sept 1970 42204/70 Headings C3P and C3Q Antiozonants for natural and synthetic rubbers comprise a mixture of (a) N-isopropyl- N<SP>1</SP>-phenyl-p-phenylenediamine and (b) N,N<SP>1</SP>- di(sec-C 3-7 alkyl)-p-phenylenediamine, each of (a) and (b) constituting 25-75 wt. per cent of total (a)+(b). Examples describe application in natural rubber and a cured SBR stock containing furnace black.
Patent GB-1322031-A (GB)
Title: Steam-raising autoclave
IPC: F22B1/28
Filed: 1970-01-09
Abstract: 1322031 Steam raising autoclave LEEDS & BRADFORD BOILER CO Ltd and H M H PICKARD 11 Jan 1971 [9 Jan 1970] 1233/70 Heading B1X [Also in Division F4]  A steam raising autoclave comprises an inner pan 1, a jacket 3 and gas, oil or electric heating means for raising steam in the space between jacket and pan. As shown electric emmersion elements 5 are provided within the space but heating elements may be applied to the outside of the jacket either in addition to internal heating means or as the sole source of heat.
Patent GB-1323677-A (GB)
Title: Printing arrangements
IPC: G06K15/08
Filed: 1969-08-09
Abstract: 1323677 Printers D V G BERRY 5 Nov 1970 [9 Aug 1969] 39929/69 Heading G4H For control of a printer, the address of the required character on a carrier and an indication of the momentarily effective printing site position are used by a summer to calculate the required carrier position which is compared with the actual carrier position. A type band, bearing the font a plurality of times, carries the types along the print line and a second band is stepped to position a hammer at the different print sites along the line in turn, the distance between adjacent print sites being smaller than that between adjacent characters on the type band. The position on the type band of the character to be printed and the position of the hammer band, multiplied by factors representing the distances between adjacent print sites and between adjacent characters on the type band, are added, the sum being taken modulo a constant depending on the font size, to indicate the required position of the type band which is compared with the actual position to actuate the hammer on equality. Marks on the type band are sensed and counted to indicate the position of the type band, the counter being reset by a further mark for each repetition of the font, or a shaft digitizer could be used. The position of the hammer band is indicated by sensing and counting marks on the hammer band. In the calculation above, the parameters may be adjustable to allow for change in the spacing of hammerband (i.e. print) positions and of characters on the type band, and in the number of characters in the font. The character spacing as printed may depend on character width by varying hammer actuation time in accordance with stored character widths. Printing could alternatively be photographic (the type band holding photographic masters, printed by a light beam), or a plurality of hammers could be provided.
Patent GB-1325542-A (GB)
Title: Colouration process
IPC: D06P3/24
Filed: 1969-07-16
Abstract: 1325542 Dyeing synthetic polyamides IMPERIAL CHEMICAL INDUSTRIES Ltd 6 July 1970 [16 July 1969] 14547/73 Divided out of 1325541 Heading D1B [Also in Division C4] The invention comprises a process for dyeing synthetic polyamide textile material wherein the material is treated with an aqueous solution of a monoazo dye of formula wherein R 1  is H or C 1 -C 4  alkyl; X and Y independently represent H, Cl, C 1 -C 4  alkyl, alkoxy or -NHCOR 2 ; R 2  is C 1 -C 4  alkyl; R 3  is alkyl, aryl, alkoxy, aryloxy, alkylamino, arylamino or amino and n is 1 or 2. In an example 5 parts of bulked nylon 66 fabric are dyed at 100‹C in a bath comprising 0.05 parts of dyestuff and 0.15 part of ammonium acetate in 150 parts of water. Red shades are obtained.
Patent GB-1327022-A (GB)
Title: Tool for applying clips to the skin
IPC: A61B17/068
Filed: 1970-09-02
Abstract: 1327022 Closing wounds NATIONAL RESEARCH DEVELOPMENT CORP 2 Sept 1970 [2 June 1969] 27910/69 Heading A5R A tool for applying to the skin, clips 15, which consist of strips of metal with prongs at the ends, provides abutments at two points along the clip equidistant from the centre and a hook 6 to engage the centre of the clip and draw the clip against the abutments to bend in on itself. The clip is located in the recessed end of a cylindrical attachment 1, through which passes a tube 2, which houses a slidable rod 4 attached to the hook. A pivotable trigger 11 actuates the rod and thus the hook by forcing a diametrically enlarged portion 7 of the rod against a spring 9. The clip may be held in position by the hook without bending by the action of a locking sleeve 16, which forces resilient spheres 18 through apertures in the tube against a further enlarged portion of the rod 5b and thus jamming the rod to prevent movement. In order to attach the clip to the skin the trigger 11 is further pulled causing the enlarged portion 5b of the rod to rotate the spheres 18 and thus release the locking sleeve 16 under the action of a spring 21, the clip then being bent into the skin by the hook. The recess 14 in the cylindrical attachment 1 ensures that the clip does not penetrate too far into the skin, whilst a further recess in the attachment 1 houses an electrode in the form of a wire coil which is attached to the skin with the clip, Fig. 2, not shown.
Patent GB-1327371-A (GB)
Title: Fluid control valves
IPC: A61F2/24
Filed: 1969-05-21
Abstract: 1327371 Valves N MACLEOD 20 Aug 1970 [21 May 1969] 26028/69 Heading F2V [Also in Division A5] Valve, which is particularly for use as a prosthetic or artificial heart valve or for other fluid control purposes, is designed to offer little resistance to or disturbance of forward flow yet to close rapidly and firmly under reverse flow or pressure gradient. One valve comprises a body 1 having a frusto-conical passageway 2 therethrough, and a valve member 3 of substantially elliptical disc form disposed, when the valve is closed, at a correspondingly shaped elliptic section of the passageway, the disc being pivotally mounted within the passageway along an axis parallel to, but spaced toward the converging end of the passageway from, the minor axis of the disc. Preferably the disc is of aerofoil section, with the leading edge nearer the converging end of the passageway. The ends of the body may terminate in oblique planes parallel to the disc, e.g. 45 degrees to the axis. The valve is provided with suitable sewing ring arrangements (not shown) for implantation.
Patent GB-1333277-A (GB)
Title: Ship-launching devices
IPC: B63C3/02
Filed: 1971-08-17
Abstract: 1333277 Launching ships A A GAISENOK J P BELYAVIN M K GLOZMAN B V MIROKHIN E A RAKOVSKY G M CHIKOV V G MASLOVSKY E N LUSHKOV R R VELSMAN 17 Aug 1971 38435/71 Heading B7S A slipway launching device comprises a hydrofoil 1 mounted on a launching slide 9a under the stern 2 of the ship to be launched arid framework 7 rigidly connects the hydrofoil to the stern of the ship. The hydrofoil is fitted so that its chord 3 is parallel to the vertical plane containing the longitudinal axis of the ship and its leading edge 5 faces the direction in which the ship is launched.
Patent GB-1334088-A (GB)
Title: Milling and scouring machines
IPC: D06C17/04
Filed: 1971-01-15
Abstract: 1334088 Scouring and milling machine SELLERS & CO (HUDDERSFIELD) Ltd 14 Jan 1972 [15 Jan 1971] 2148/71 Heading D1L In a scouring and milling machine an endless length of fabric 38 in rope form is fed by a cloth roller 15 through aperture 24 into a box housing formed by a trough having bottom wall 21 and side walls 22 and is pushed along the trough in a piled condition by a reciprocating shoe element 20 disposed at the inlet end of the trough and reciprocated via spindle 20a which passes through elongated slot A in the trough side wall 22, link 25a and rotating crank wheel 27. The trough is formed with at least part of its side, bottom or top walls movable with respect to the remainder for further compacting the fabric moving therealong. Conveniently the top wall is formed with a section 32 which is pivotable about spindle 31 by piston arrangement 36 and has apertures 33 formed in its underside and the side walls 22 are provided with sections 22a which are pivotable about spindles 22b and have apertures 22c formed therein. Spray heads 30 may be provided at intervals along the base of the trough. In operation, reciprocating shoe element 20 pushes cloth 38 along the trough and at the same time top wall part 32 and side wall parts 22a are reciprocated to alternately squeeze and release the cloth so that excess scouring or washing liquor provided from sprays 30 is forced through the fabric and passes through apertures 22c and 33 to the base of the scouring and milling housing to maintain a reservoir of liquor through which the cloth passes. The machine may also include a beater roller 44, an auxiliary scouring and washing spray 19, motor 16 for driving the roller 15 and reciprocating shoe element 20, a closable access opening 11, a liquor circulation pump 37 connected to the spray heads and an outlet 42 formed in a sub-base 41 disposed in the machine for collection of the used liquor, and an adjustable flap 43 located at the outlet end of the trough and positioned to restrict the free escape of fabric from the trough. When the scouring operation described above is completed the milling process is carried out by applying a constant pressure on the travelling fabric from top and side flaps 32 and 22a respectively and using tail flap 43 to build up a required pressure on the fabric in the trough. Reciprocation of the shoe element may alternatively be achieved by connecting spindles 20a to a reciprocating hydraulic or pneumatically operated piston (Fig. 2, not shown).
Patent GB-1339423-A (GB)
Title: Knitted fabrics and garments
IPC: D04B1/24
Filed: 1970-05-12
Abstract: 1339423 Knitting COURTAULDS Ltd 11 May 1971 [12 May 1970] 22857/70 Heading D1K In a method of forming mock-rib on a straight bar machine, spaced needles or groups of needles e.g. N5, N6 are prevented from drawing loops. The fabric thus comprises columns 1 and 2 of four adjacent wales spaced by a column 3 of non-knitted loops. Although yarn is laid around the needles, prevention is ensured by breaking relevant needle parts at the tips, or covering the tip with a cap as described in Specification 1251190. A garment including the mock-rib effect is fashioned by transferring groups of knitted loops across interveening floats to the adjacent group of loops as shown at the top of the figure.
Patent GB-1340327-A (GB)
Title: Coding arrangements
IPC: H04K1/06
Filed: 1971-04-19
Abstract: 1340327 Secret communication systems PLESSEY CO Ltd 19 April 1971 [14 Feb 1970] 7205/70 Heading H4R A radio or line communication system includes an encoder 2 and decoder 4 each including a storage arrangement comprising in the encoder a magnetic drum 12 which has the message written on to it by a single writing head 10 and read out by a plurality of reading heads 14a-14g. The output of the reading heads is sampled by switches 20a-20g which are closed by converter 36 in an order determined by code generator 34. A pulse generator 26 operates at a frequency of 2500 Hz which frequency is divided by 125 to give pulses every 50 ms. for closing switches 20a-20g to sample 50 ms. portions of the input signal. A further frequency division provides pulses every 400 ms. used to charge the code in code generator 34, control the drum speed in control 32 and modulate the 2500 Hz frequency at 38 so that the modulated waveform can be transmitted. The output of code generator 34 is modulated by a 1 KHz signal to provide a code synchronizing signal which is transmitted when switch 44 is closed. The decoder 4 operates in a complementary manner with the pulse generator 128 being kept in step by comparison with the 400 ms. pulses detected on the 2500 Hz carrier and the use of the correct code is ensured by operation of switches 44, 144 before transmission commences.  The magnetic drum may be replaced by a magnetic disc or tape loop.
Patent GB-1345451-A (GB)
Title: Packages
IPC: B65D71/00
Filed: 1972-01-22
Abstract: 1345451 Packages JOHN WADDINGTON Ltd 10 Jan 1973 [22 Jan 1972] 3164/72 Heading B8C The lowermost of stacked piles of containers having recessed lids seat in apertures 32 provided in the bottom panel 12 of a surrounding sleeve carton, which has folded-under topwall tabs 36 locating in the recessed lids of the uppermost containers and which has weakening lines 30 extending to the apertures to permit tearing of the carton therealong by grasping a finger grip 28 to release the containers. The sleeve is formed from a folded blank having a glue tab 24 Fig. 1 (not shown). In a modification, Fig. 4 (not shown), the apertures and tabs are designed for engagement with circular-section containers as opposed to the square-section containers shown.
Patent GB-1346600-A (GB)
Title: Flame tubes for gas turbine engines
IPC: F23R3/00
Filed: 1970-06-12
Abstract: 1346600 Gas turbine combustion chambers JOSEPH LUCAS (INDUSTRIES) Ltd 2 Aug 1971 [12 June 1970] 28539/70 Heading F1L A flame tube for a gas turbine engine comprises a first tube member 45, Fig. 4, of ceramic material secured to a second tube member in axially-spaced concentric relationship by clamping, means which compensates for differential thermal expansion between the clamping means and at least one of the tube members. The clamping means has frusto-conical surfaces on metal members 51, 52 and 54, 55 which co-operate with complementary surfaces on ceramic tube members 45, 46, the included angle of the surfaces being such that substantially constant clamping force is maintained at the co-operating surfaces during differential thermal expansion. A ceramic air baffle 57 is similarly secured by clamping means 58, and is located in the inlet end of the flame tube by a system of relatively slidable rods 60 and tubes 59. The flame tube is attached by lugs 66 to a structure 62 defining with a cylinder 70 of expanded metal mesh, an annular space 63 through which air is introduced. The air flows into the flame tube through the annular gap at the periphery of baffle 57, the axial gap between the tube members 45, 46, and dilution holes 56. In Fig. 3 (not shown), the upstream tube member is composed of several axially-stacked frusto-conical ceramic rings (32) clamped together by differential thermal expansion compensating clamping means which also couples the two tube members together in axially-spaced relationship. In Fig.1, each tube member 10, 11 comprises four quadrants 14 and and 19 respectively, each quadrant having radial lugs (15), Fig.2 (not shown) at their circumferential ends by which they are secured together by clamping means 16 and 20. The latter have clamping elements 16a, 16b and 20a, 20b for this purpose, the co-operating surfaces of these elements and the lugs (15) being tapered radially inwardly to compensate for differential thermal expansions. Packing material may be located between the co-operating clamping surfaces in all arrangements described.